HP has pretty good support - you should be dealing with them:
http://welcome.hp.com/country/us/en/...isplay=support

"Lee Willmann" <LeeWillmann@discussions.microsoft.com> wrote in message news:909E49E7-601F-4F52-9D40-9F3AC0092593@microsoft.com...
>I purchased an HP notebook computer that has Windows Vista Ultimate (64-bit)
> installed on it.
>
> I ran into a problem and was attempting to get into email or chat support on
> Microsoft's site. At first, I mistakenly chose just normal Windows Vista
> Ultimate, and entered my product ID. The site responded by telling me that
> the ID is a 64-bit ID, so I went back and chose Ultimate 64-bit, and entered
> my PID, and the system tells me that it's not a valid ID.
>
> Is anyone else having this problem?
> --
> -Lee-